FS-4038 can you try this

src/switch_channel.c

@@ -1380,7 +1380,7 @@ SWITCH_DECLARE(void) switch_channel_wait_for_state(switch_channel_t *channel, sw
 	
 	for (;;) {
 		if ((channel->state < CS_HANGUP && channel->state == channel->running_state && channel->running_state == want_state) ||
-			(other_channel && switch_channel_down_nosig(other_channel)) || switch_channel_down_nosig(channel)) {
+			(other_channel && switch_channel_down_nosig(other_channel)) || switch_channel_down(channel)) {
 			break;
 		}
 		switch_yield(20000);
@@ -1399,6 +1399,8 @@ SWITCH_DECLARE(void) switch_channel_wait_for_state_timeout(switch_channel_t *cha
 			break;
 		}
 
+		switch_channel_check_signal(channel, SWITCH_TRUE);
+
 		switch_cond_next();
 
 		if (++count >= timeout) {

src/switch_ivr_bridge.c

@@ -776,7 +776,7 @@ static switch_status_t uuid_bridge_on_soft_execute(switch_core_session_t *sessio
 			state = switch_channel_get_state(other_channel);
 			running_state = switch_channel_get_running_state(other_channel);
 
-			if (switch_channel_down_nosig(other_channel) || switch_channel_down_nosig(channel)) {
+			if (switch_channel_down_nosig(other_channel) || switch_channel_down(channel)) {
 				break;
 			}